3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { var $bar = 0; } $f = new foo(); $g = $f; $f->bar++; var_dump($g->bar);
Output for 5.1.3 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
int(1)
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.2
Strict Standards: var: Deprecated. Please use the public/private/protected modifiers in /in/mLtHK on line 3 int(1)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
int(0)

preferences:
294.2 ms | 402 KiB | 424 Q